Movable fort.



A. KRZAN.

MOVABLE FORT.

APPLICATION man MAR. 23. 191B.

Patented Aug. 6, 1918.

2 SHEETS-$HEET I.

INVENTOR Aniwzfir'zazz BY d2:

ATTORNEY ANTON KRZAN, OF CHICAGO, ILLINOIS.

.MOVABLE FORT.

Specification of Letters Patent.

Patented Aug. 6, 1918,.

Application filed March 23, 1918. Serial No. 224,284.

T 0 all whom it may concern ,7 Be it known that I, Aiv'ron Kazan, a sub ject of the Emperor of Austria, resident of Chicago, county of Cook, and State of Illi nois, have invented certain new and useful Improvements in'Movable Forts, of which the following is a specification.

This invention relates to improvements in portable forts and particularly to types which are capable of being raised and lowered by an operator stationed therein.

The principal object of the invention is to provide an armored turret so mounted that it can be readily transported by any power source over a relatively level surface and which by the n'ianipulation of an operator stationed therein, may be raised or lowered to any desired level so that the gun carried thereby may be brought into position for use.

A further object is to provide a turret which is readily rotatable, together with the gun so that the same may be pointed in any desired direction when in a raised position, and v A still further object is to provide means whereby the raising or lowering devices, together with the operator, are protected from danger.

These and other like objects are attained by the novel construction and combination of parts hereinafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in which Figure 1 is a side elevational view showing an apparatus made in accordance with the invention.

Fig. 2 is a side elevational view of the same, parts being broken away in order to disclose the interior construction.

' same, the parts being shown in a collapsed or lowered position, and

Fig. 5 is a horizontal sectional view, taken on line 5-5 of Fig. 1.

The invention comprises, in general, a plurality of telescopically engaged cylinders adapted for vertical operation. The outer series of cylinders, respectively 10, 11, 12 and 13, having interengaging flanges 15 and 16, which make contact when the telescopic elements are fully extended. A door 14 is provided in the upper cylinder 13 for the ingross and exit of the operator. 7,

The lower tubular element 10, has a rigid bottom wall 18, mounted at one side upon a shaft 19, and having at its ends a pair of truck wheels 20, the shaft being secured to the bottom 18, by brackets 21. At the opposite side is a single central bracket 23,

in which is engaged a shaft 2 1, carrying other truck wheels 25, at its ends, the same alining with the rear wheels 20.

Also attached to the front shaft 24:, are links 26, pivotally joined at their center and connected with a hook 27, thus permitting the apparatus to be, hauled in the manner of an ordinary truck.

Fixed within the lower portion of the outer and lowermost cylinder 10, is a solid body 28, while near the inner flange 16 are secured tubular support rods 29, by means of the pivots 30, there being within the tubular supports 29, slidable bars 31, having pointed ends thus holding the apparatus rigidly erectagainst danger of tipping over, the bars being clamped in adjustment by screws 32.

In the upper telescopic cylinder 13, is an annular raceway 35 containing a plurality of balls or spheres 36, upon which rests an annular seat element 37, so that the same may readily rotate upon the ball bearing thus formed, and rising from the seat 37, is the upper section 38, of the apparatus, the same being provided with loop holes 39, and covered'by a dome shaped cap orcover 40.

Mounted upon a bracket 12-, secured to the inner walls of the cylindrical element 38, is a rapid fire gun 15, extending outward through an opening 46, the mounting being such that the gun may be elevated or depressed in an ordinary manner.

Held by the body element 28 is the lowermost cylinder 48, of an interior telescopic tube, comprised of elements 49, the uppermost element 50, being secured to a plate 51, fixed with the inner flange 16 of the outer telescopic cylinder 13, forming a flooring for the upper telescopic element 13. An

interior flooring 52, formed in the upper end of the uppermost interior telescopic element 50, has secured to it a pump barrel 54, containing a plunger and suitable valves which are operated by a link 55, attached to a crank 56, mounted upon a shaft 57, also carrying operative hand wheel 58, so that the compartment 38 so that a view may be an operator within the uppermost tubular compartment 13, may by actuating the handle 59, compress air by the pump 54.

The lower end of the pump '54 is engaged with a flexible sac or lining 60, so that upon air being furnished by the pump 54:,"th e sacl.

operator mayby operating the wheel'58, causethe inner sac'60 to be inflated, raising the upper part of the apparatus to any desired height within'certain limits.

The head of the operator extends into taken through the openings 39,'and the gun 45 directed in an obvious manner. When itis desired to descend, the valve 62 may be opened, permitting the air within the sac 60 to pass through the tube 63 and the open- I claim as new and desire to secure by Let-r Copies. of this patent may be obtained for ings at the top of the apparatus, allowing the entire structure to quickly descend, due torgravity, as will be readily understood.

Having thus described my invention what ters Patent, is: r V

1.'In a 'movable fort, the combination with a plurality of inter-engaged telescopic tubes,- a truck upon 'which said tubes are mounted, and means for supporting said truck and said tubes laterally, of a turret revolubly mounted upon the uppermost of said tubes, a second series of telescopic tubes engaged interiorly of the first named tubes, j an'inflata'ble sac engaged within the second series of tubes, and -means for inflating or deflating said sac whereby said turret may be raised or lowered.

five cents each, by addressing Washington, D. G3 l 2. In a movable fort, the combination with a plurality of telescopic tubes interengaged together, a truck upon which they are mounted, lateral supports engaged with the lowermost of said tubes, a turret revolubly moun ed upon the uppermost of said telescopic tubes, and a gun carried thereby,

of the uppermost of said telescopic tubes,

' a door hingedly engaged therein, a manually operative pump secured upon said floor, a

second series of telescopictubes arranged within the first named tubes,'an inflatable flexible sac carried lnteriorly of sald inner telescopic tubes, said" sac communicating with saidpump, means for manually operating'said pump, and means for releasing the air contained in said sac.

In a movable "fort, the combination with a plurality of armor plate tubes, interengaged at their edges, a truck upon which the lowermost of said tubes is mounted whereby said truck maybe hauled, support rods hingedly engaged witlithe lowermost of said tubes, said support {rods being extensible outwardly, and means for holding in said turret, a door in the uppermost of said telescoplc tubes whereby, an operator of a rigid flooring formed at the bottom said support rods in adjustment, of'aturret revolubly mounted upon the uppermost of said telescopic tubes, a' gun carriedtherein,"

V openings through which views may be taken may enter or leave, afloor arranged therein, a manually operable pump secured on said floor, a plurality of inner telescopic tubes engaged together at their edges, and an inflatable flexible sac arranged in the interior of said inner tubes, said sac communicating with said pump and Y constituting means whereby said turret may be raised or low ered.

In testimony whereoirt'l have aflixed my signature. 7

ANTON KRZAN.

the Commissioner of Patents. 

